Add-on in blender 2.8 not installing
When you download the BlenderTools.zip
extract it, and goto send2ue/addon which will contain folders like dependencies, functions, ui and some files.
select all the files &amp; folders,
zip them &amp; rename the folder to send2ue.
This can be installed as plugin in blender.
I know it's a late reply to this thread, but someone might find it useful. :)
A blessed guy made a tutorial.